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载银Cu_2O纳米球制备及其去除焦化废水中偶氮污染物研究 被引量:1

Synthesis of Cu_2O-Ag Nanospheres and Application of Removing AZO dyes in Coking Wastewater
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摘要 通过沉淀法制备了Cu2O纳米球,然后采用化学还原法将纳米银颗粒负载在Cu2O纳米球表面,并通过扫描电子显微镜对其微观形貌和晶体形态进行了表征,最后以偶氮类染料甲基橙模拟常见的焦化废水污染物,在UV体系下分别用Cu2O纳米球和载银Cu2O纳米球进行了吸附与光降解实验,以研究其去除效果,实验结果表明:通过2h的光催化,模拟污染物的去除效率分别为74.1%及92.5%。 Thisarticlefirstly preparesCu2O nanospheresbymeansofoxidation-reduction methodand thenmakes thesilvernanoparticles load in the surface of Cu2O nanospheresbyusingchemical reduction method-Ag-Cu2O composite nanospheres aresynthesized. And then the article describesthe micro-structure and crystal-line type of spherical Ag-Cu2O nanospheres by scanning electron microscope(SEM). Finally, usingmethyl Orange dye (MO) to simulate the common polltants in coking wastewater,it conductsadsorption and photo-degradation experimentsby respectively usingCu2O nanospheresand Ag-Cu2O composite nanospheres under theUV system tostudy the removal effects. The results show that the removal rates of Methyl Orange as sim-ulative pollutants are 74.1%and 92.5%aftertwo-hourphotocatalysis.
作者 苏海霞 陈卓
出处 《绿色科技》 2013年第3期199-201,共3页 Journal of Green Science and Technology
关键词 Cu2O纳米球 去除 银负载 焦化废水 偶氮类染料 Cu2O nanospheres removal Ag load coking wastewater AZO dyes
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